It would take around three million years to
download all the information currently on the internet, assuming a
download speed of 44 megabits per second. There are an estimated
550 trillion megabytes of data on the web. A world of information
at your fingertips. Thank physics for that!

It's false! Halley's comet cannot be tracked by GPS as it is out
of range of the GPS satellites. Besides, getting a GPS tracker onto
the comet could prove quite tricky! Lindsay Lohan and polar bears
have both been tracked by GPS - though not in the same place at the
same time. Pinpoint your location in seconds. Thank physics
for that.

There is currently no app that can give you x-ray
vision - besides, the safety concerns of high intensity
radiation would prove a major barrier in making this a reality.
Seeing through walls may not be possible but seeing around corners
and measuring brainwaves can both be done with a smartphone.
500,000 apps and counting. Thank physics for
that!